docs: def get_weekly_charts(self, chart_kind, from_date=None, to_date=None):
          """
          Returns the weekly charts for the week starting from the
          from_date value to the to_date value.
          chart_kind should be one of "album", "artist" or "track"
          """
          method = ".getWeekly" + chart_kind.title() + "Chart"
          chart_type = eval(chart_kind.title())  # string to type
  
          params = self._get_params()
          if from_date and to_date:
              params["from"] = from_date
              params["to"] = to_date
  
          doc = self._request(self.ws_prefix + method, True, params)
  
          seq = []
          for node in doc.getElementsByTagName(chart_kind.lower()):
              if chart_kind == "artist":
                  item = chart_type(_extract(node, "name"), self.network)
              else:
                  item = chart_type(
                      _extract(node, "artist"), _extract(node, "name"), self.network
                  )
              weight = _number(_extract(node, "playcount"))
              seq.append(TopItem(item, weight))
  
          return seq